With the rapid development of new energy vehicles, the demand for lithium batteries continues to rise, making the production of lithium carbonate, one of its core cathode materials, particularly crucial. Currently, lithium carbonate is mainly extracted from raw materials such as spodumene, lepidolite, overhaul slag, glass powder, or recycled black powder from waste batteries. Among these, the production process using spodumene ore as raw material still holds the mainstream position.
In the spodumene lithium extraction process, the acidification rate in the acid roasting stage directly affects the product yield and production cost. Key factors affecting the acidification rate include: the accuracy of the ratio of concentrated sulfuric acid to β-spodumene powder, the uniformity of mixing, and the control of roasting temperature and time. Among these, the acid mixer, as the core equipment for uniform material mixing, has a decisive influence on the acidification rate.
The acid mixing machine independently developed by Henan Zhengzhou Mining Machinery Co., Ltd. has demonstrated significant advantages in long-term practical application, mainly reflected in the following aspects:
1. High corrosion-resistant and wear-resistant stirring blades: Manufactured using special materials, the service life has been significantly increased from the original 2 months to approximately 8 months, with almost no increase in maintenance costs.
2. Reinforced main shaft design: The main shaft uses high-quality materials and combines a special spraying process with a unique blade connection structure, significantly improving overall strength and effectively avoiding problems such as shaft breakage and wear, adapting to harsh acid mixing conditions.
3. Integrated acid-resistant and wear-resistant housing: The entire housing is integrally welded from corrosion-resistant and wear-resistant materials, with a wear-resistant liner added to the bottom to ensure no acid leakage during operation and extend equipment life.
4. Effective concentrated sulfuric acid distributor: The innovatively designed acid spraying system significantly improves the uniformity of concentrated sulfuric acid distribution in the material, ensuring a stable and uniform acid supply during the mixing process.
5. Multi-level sealing structure: Breaking through the limitations of traditional sealing, it adopts a stepped structure combined with packing seals and labyrinth seals, etc., to eliminate dust leakage and improve environmental performance.
6. Compact Structural Layout: The overall structure has been optimized for a small footprint, facilitating integration and installation, and is suitable for various production line layouts.
This acid mixer has been operating stably for many years in multiple lithium carbonate production projects. It boasts a low failure rate, few vulnerable parts, low operating costs, and excellent mixing uniformity, earning widespread customer recognition.
We sincerely invite industry colleagues to consult and exchange ideas, jointly promoting the advancement of lithium battery material equipment technology!
